Cultivator.



PATENTED APR. 12, 1904.

' A. SAMUELSON.

GULTIVATOR.

APPLIOATION FILED SEPT. 19, 1903.

2 SHEETS-SHEET 1.

NO- MODEL.

'No. 756,898. PATENTED APR. 12, 1904. A. L. SAMUELSON.

GULTIVATOR. APPLICATION FILED SEPT. 19, 1903.

2 SHEETS-SHEET :2.

NO MODEL.

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Weavers.

Patented April 1 2, 1904.

PATENT FFICE.

ALFRED L. SAMUELSON, OF OSSEO, WISCONSIN.

CULTIVATOR.

SPECIFICATION forming part of Letters Patent No. 756,898, dated April 12, 1904-.

Application filed September 19 1903. Serial No. 173,831. (No model.)

To all whom it may concern:

Be itknown that I, ALFRED L. SAMUnLsoN, a citizen of the United States, residing at Osseo, in the county of Trempealeau and State of Wisconsin, have invented new and useful Improvements in Cultivators, of which the following is a specification.

The object of this invention is to produce improved means for adjusting or spreading the beams of a cultivator.

A further object of the invention is to produce improved means for regulating the depth of the teeth thereof.

A further object of the invention is the production of an improved cultivator, as will more fully hereinafter appear.

I11 the accompanying drawings, Figure 1 is a side elevation of the cultivator. Fig. 2 is a plan View thereof. Fig. 3 is a detail showing a sliding box on the middle beam of the cultivator, said box carrying the screw for spreading the beams. Fig. 4. is a detail of swivelnuts carried by the side beams for said expandingscrew.

Referring specifically to the drawings, 6indicates the middle beam of a -three-bar cultivator, and 7 the side beams thereof. These beams are attached at the front ends to the front cross-bar 8, the middle beam by a rigid connection and the side beams by a pivotal connection at 9, permitting the side beams to be swung in or out. The middle beam is extended at the front to forma draft-tongue 10, to which the draft-animals may be attached, and this is slotted to form a guide for the arm 11, carrying the gage-wheel 12. Said arm extends through the slot in the tongue and has vertical motion therein, being pivoted at 13 to the front end of a frame 14, which is bolted at its rear endto the middle beam, as at 14:, and is supported at its front end by an arch 14: rising from opposite ends ofthe front bar 8. The arm 11 is swung and the gagewheel adjusted by means of a hand-lever 15, pivoted at 15 to the frame 14 and connected by a rod 16 to the arm 11. Vibration of the lever causes the gage-wheel to be raised or lowered accordingly.

The handles are indicated at 17 secured to the frame lt and may be braced by standards 18, rising from the middle beam.

At 19 an adjusting-screw is indicated adapted to be turned by the crank 19 to spread or contract the side beams; This screw extends at its ends through swiveling nuts 20, carried in recesses in the rear ends of the side beams, and also extends through a sliding box 21, movable in a slot or mortise 22, produced in the rear end of the middle beam. This construction is necessary to prevent binding of the screw when the side beams move in an arc. The swiveling nuts accommodate themselves to the direction of the screw, and the box 21 slides along in the slot accordingly. The box is retained in the slot by tongue and groove at top and bottom, as indicated at 23. Any other construction to produce the same result would do as well.

At 24: the teeth are indicated. These are pivoted at the top, as at 25, to the beam, and they are all connected by rods 26 to a crossbar 27, carried at the lower end of a handlever 28, which is pivoted at 29 to the middle beam. Each tooth also has a spring 30 connecting the same to the beam and tending to keep the tooth in a vertical position. The

levers 28 and 15 have the usual segments and latches.

The depth of the teeth is regulated by adjustment of the lever 28. By pulling the lever backward the teeth are simultaneously turned forward on their pivots, making a shallow cut, and to make the teeth run deeper the lever 28 is released, when the springs 30 will restore the teeth to a more nearly vertical position.

- Adjustment of the beams laterally is eflected by turning the screw 19 to make the cultivator wider or narrower.-

What I claim as new, and desire to secure by Letters Patent, isl 1. In a cultivator, the combination with a middle and side beams pivotally connected together at the front end, the middle beam hav.

ing a sliding box at its rear end and the side beams having swiveling nuts at their rear ends, of a screw Working through the box and the nuts, to vary the spread of the beam.

2. The combination With the front crossbar, and the middle and side beams connected thereto, of the frame 14: extending lengthwise above the middle beam and joined at its rear end thereto, thearch supported on the crossbar and connected to the front end of said frame, the gage-Wheel arm pivoted to the front end of said frame, and the hand-lever pivoted I6 on the frame and connected to said arm.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

ALFRED L. SAMUELSON. Witnesses:

C. J. MILLER, Mrs. J. N. Lian. 

